Add-ons Tickets 2.8.1

• Add ability to ban specific emails from Ticket system.
• Add "shadow ban" feature, by an explicit email list or for tickets which contain too few words.
• Add ability to copy ticket user's email to clipboard, if the visitor can see it.
• Add additional filters for showing tickets based on whether they are unassigned, assigned to self or assigned to others.
• Fix an issue with BB code rendering when using predefined responses.
• Ensure the captcha displays when replying or creating a ticket.
• Fix non-functional draft support for new tickets.
• Improve behaviour of various input fields whilst using RTL languages.

• Fix ticket change thread form not linking to the thread.
• Fix ticket discussion thread not displaying ticket tabs bar.
• Harden installer and fix possible issues upgrading from XF1, a MySQL 8.0 compatibility issue and duplicate columns.
• Fix invite/create ticket notification not working as expected.
• Support inviting/creating a ticket and notifying the user anonymously.
• Added ticket status/priority/category to escalation criteria.